ˌpid.əˈrīəsə̇s noun
( plural pityria·ses -īəˌsēz)
Etymology: New Latin, from Greek, from pityron bran, scurf, dandruff + -iasis, n. suffix — more at -iasis
1. : one of several skin diseases marked by the formation and desquamation of branny scales
2. : a disease of domestic animals marked by dry epithelial scales or scurf due to alteration of the function of the sebaceous glands and possibly associated with digestive disorders